[stubs,interpreter] Optimise SMI loading for 64-bit targets.

src/interpreter/interpreter.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/interpreter/interpreter.h"
 
 #include <fstream>
 #include <memory>
 
 #include "src/ast/prettyprinter.h"
@@ skipping 1384 matching lines @@
 void Interpreter::DoJump(InterpreterAssembler* assembler) {
   Node* relative_jump = __ BytecodeOperandImm(0);
   __ Jump(relative_jump);
 }
 
 // JumpConstant <idx>
 //
 // Jump by number of bytes in the Smi in the |idx| entry in the constant pool.
 void Interpreter::DoJumpConstant(InterpreterAssembler* assembler) {
   Node* index = __ BytecodeOperandIdx(0);
-  Node* constant = __ LoadConstantPoolEntry(index);
-  Node* relative_jump = __ SmiUntag(constant);
+  Node* relative_jump = __ LoadAndUntagConstantPoolEntry(index);
   __ Jump(relative_jump);
 }
 
 // JumpIfTrue <imm>
 //
 // Jump by number of bytes represented by an immediate operand if the
 // accumulator contains true.
 void Interpreter::DoJumpIfTrue(InterpreterAssembler* assembler) {
   Node* accumulator = __ GetAccumulator();
   Node* relative_jump = __ BytecodeOperandImm(0);
   Node* true_value = __ BooleanConstant(true);
   __ JumpIfWordEqual(accumulator, true_value, relative_jump);
 }
 
 // JumpIfTrueConstant <idx>
 //
 // Jump by number of bytes in the Smi in the |idx| entry in the constant pool
 // if the accumulator contains true.
 void Interpreter::DoJumpIfTrueConstant(InterpreterAssembler* assembler) {
   Node* accumulator = __ GetAccumulator();
   Node* index = __ BytecodeOperandIdx(0);
-  Node* constant = __ LoadConstantPoolEntry(index);
-  Node* relative_jump = __ SmiUntag(constant);
+  Node* relative_jump = __ LoadAndUntagConstantPoolEntry(index);
   Node* true_value = __ BooleanConstant(true);
   __ JumpIfWordEqual(accumulator, true_value, relative_jump);
 }
 
 // JumpIfFalse <imm>
 //
 // Jump by number of bytes represented by an immediate operand if the
 // accumulator contains false.
 void Interpreter::DoJumpIfFalse(InterpreterAssembler* assembler) {
   Node* accumulator = __ GetAccumulator();
   Node* relative_jump = __ BytecodeOperandImm(0);
   Node* false_value = __ BooleanConstant(false);
   __ JumpIfWordEqual(accumulator, false_value, relative_jump);
 }
 
 // JumpIfFalseConstant <idx>
 //
 // Jump by number of bytes in the Smi in the |idx| entry in the constant pool
 // if the accumulator contains false.
 void Interpreter::DoJumpIfFalseConstant(InterpreterAssembler* assembler) {
   Node* accumulator = __ GetAccumulator();
   Node* index = __ BytecodeOperandIdx(0);
-  Node* constant = __ LoadConstantPoolEntry(index);
-  Node* relative_jump = __ SmiUntag(constant);
+  Node* relative_jump = __ LoadAndUntagConstantPoolEntry(index);
   Node* false_value = __ BooleanConstant(false);
   __ JumpIfWordEqual(accumulator, false_value, relative_jump);
 }
 
 // JumpIfToBooleanTrue <imm>
 //
 // Jump by number of bytes represented by an immediate operand if the object
 // referenced by the accumulator is true when the object is cast to boolean.
 void Interpreter::DoJumpIfToBooleanTrue(InterpreterAssembler* assembler) {
   Node* value = __ GetAccumulator();
   Node* relative_jump = __ BytecodeOperandImm(0);
   Label if_true(assembler), if_false(assembler);
   __ BranchIfToBooleanIsTrue(value, &if_true, &if_false);
   __ Bind(&if_true);
   __ Jump(relative_jump);
   __ Bind(&if_false);
   __ Dispatch();
 }
 
 // JumpIfToBooleanTrueConstant <idx>
 //
 // Jump by number of bytes in the Smi in the |idx| entry in the constant pool
 // if the object referenced by the accumulator is true when the object is cast
 // to boolean.
 void Interpreter::DoJumpIfToBooleanTrueConstant(
     InterpreterAssembler* assembler) {
   Node* value = __ GetAccumulator();
   Node* index = __ BytecodeOperandIdx(0);
-  Node* constant = __ LoadConstantPoolEntry(index);
-  Node* relative_jump = __ SmiUntag(constant);
+  Node* relative_jump = __ LoadAndUntagConstantPoolEntry(index);
   Label if_true(assembler), if_false(assembler);
   __ BranchIfToBooleanIsTrue(value, &if_true, &if_false);
   __ Bind(&if_true);
   __ Jump(relative_jump);
   __ Bind(&if_false);
   __ Dispatch();
 }
 
 // JumpIfToBooleanFalse <imm>
 //
@@ skipping 12 matching lines @@
 
 // JumpIfToBooleanFalseConstant <idx>
 //
 // Jump by number of bytes in the Smi in the |idx| entry in the constant pool
 // if the object referenced by the accumulator is false when the object is cast
 // to boolean.
 void Interpreter::DoJumpIfToBooleanFalseConstant(
     InterpreterAssembler* assembler) {
   Node* value = __ GetAccumulator();
   Node* index = __ BytecodeOperandIdx(0);
-  Node* constant = __ LoadConstantPoolEntry(index);
-  Node* relative_jump = __ SmiUntag(constant);
+  Node* relative_jump = __ LoadAndUntagConstantPoolEntry(index);
   Label if_true(assembler), if_false(assembler);
   __ BranchIfToBooleanIsTrue(value, &if_true, &if_false);
   __ Bind(&if_true);
   __ Dispatch();
   __ Bind(&if_false);
   __ Jump(relative_jump);
 }
 
 // JumpIfNull <imm>
 //
 // Jump by number of bytes represented by an immediate operand if the object
 // referenced by the accumulator is the null constant.
 void Interpreter::DoJumpIfNull(InterpreterAssembler* assembler) {
   Node* accumulator = __ GetAccumulator();
   Node* null_value = __ HeapConstant(isolate_->factory()->null_value());
   Node* relative_jump = __ BytecodeOperandImm(0);
   __ JumpIfWordEqual(accumulator, null_value, relative_jump);
 }
 
 // JumpIfNullConstant <idx>
 //
 // Jump by number of bytes in the Smi in the |idx| entry in the constant pool
 // if the object referenced by the accumulator is the null constant.
 void Interpreter::DoJumpIfNullConstant(InterpreterAssembler* assembler) {
   Node* accumulator = __ GetAccumulator();
   Node* null_value = __ HeapConstant(isolate_->factory()->null_value());
   Node* index = __ BytecodeOperandIdx(0);
-  Node* constant = __ LoadConstantPoolEntry(index);
-  Node* relative_jump = __ SmiUntag(constant);
+  Node* relative_jump = __ LoadAndUntagConstantPoolEntry(index);
   __ JumpIfWordEqual(accumulator, null_value, relative_jump);
 }
 
 // JumpIfUndefined <imm>
 //
 // Jump by number of bytes represented by an immediate operand if the object
 // referenced by the accumulator is the undefined constant.
 void Interpreter::DoJumpIfUndefined(InterpreterAssembler* assembler) {
   Node* accumulator = __ GetAccumulator();
   Node* undefined_value =
       __ HeapConstant(isolate_->factory()->undefined_value());
   Node* relative_jump = __ BytecodeOperandImm(0);
   __ JumpIfWordEqual(accumulator, undefined_value, relative_jump);
 }
 
 // JumpIfUndefinedConstant <idx>
 //
 // Jump by number of bytes in the Smi in the |idx| entry in the constant pool
 // if the object referenced by the accumulator is the undefined constant.
 void Interpreter::DoJumpIfUndefinedConstant(InterpreterAssembler* assembler) {
   Node* accumulator = __ GetAccumulator();
   Node* undefined_value =
       __ HeapConstant(isolate_->factory()->undefined_value());
   Node* index = __ BytecodeOperandIdx(0);
-  Node* constant = __ LoadConstantPoolEntry(index);
-  Node* relative_jump = __ SmiUntag(constant);
+  Node* relative_jump = __ LoadAndUntagConstantPoolEntry(index);
   __ JumpIfWordEqual(accumulator, undefined_value, relative_jump);
 }
 
 // JumpIfNotHole <imm>
 //
 // Jump by number of bytes represented by an immediate operand if the object
 // referenced by the accumulator is the hole.
 void Interpreter::DoJumpIfNotHole(InterpreterAssembler* assembler) {
   Node* accumulator = __ GetAccumulator();
   Node* the_hole_value = __ HeapConstant(isolate_->factory()->the_hole_value());
   Node* relative_jump = __ BytecodeOperandImm(0);
   __ JumpIfWordNotEqual(accumulator, the_hole_value, relative_jump);
 }
 
 // JumpIfNotHoleConstant <idx>
 //
 // Jump by number of bytes in the Smi in the |idx| entry in the constant pool
 // if the object referenced by the accumulator is the hole constant.
 void Interpreter::DoJumpIfNotHoleConstant(InterpreterAssembler* assembler) {
   Node* accumulator = __ GetAccumulator();
   Node* the_hole_value = __ HeapConstant(isolate_->factory()->the_hole_value());
   Node* index = __ BytecodeOperandIdx(0);
-  Node* constant = __ LoadConstantPoolEntry(index);
-  Node* relative_jump = __ SmiUntag(constant);
+  Node* relative_jump = __ LoadAndUntagConstantPoolEntry(index);
   __ JumpIfWordNotEqual(accumulator, the_hole_value, relative_jump);
 }
 
 // CreateRegExpLiteral <pattern_idx> <literal_idx> <flags>
 //
 // Creates a regular expression literal for literal index <literal_idx> with
 // <flags> and the pattern in <pattern_idx>.
 void Interpreter::DoCreateRegExpLiteral(InterpreterAssembler* assembler) {
   Callable callable = CodeFactory::FastCloneRegExp(isolate_);
   Node* target = __ HeapConstant(callable.code());
@@ skipping 573 matching lines @@
   __ StoreObjectField(generator, JSGeneratorObject::kContinuationOffset,
       __ SmiTag(new_state));
   __ SetAccumulator(old_state);
 
   __ Dispatch();
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8